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AAAI
2007
15 years 9 months ago
A Deployed Semantically-Enabled Interdisciplinary Virtual Observatory
We have used semantic technologies to design, implement, and deploy an interdisciplinary virtual observatory. The Virtual Solar-Terrestrial Observatory is a production data framew...
Deborah L. McGuinness, Peter Fox, Luca Cinquini, P...
CONCUR
2008
Springer
15 years 9 months ago
Subsequence Invariants
We introduce subsequence invariants, which characterize the behavior of a concurrent system in terms of the occurrences of synchronization events. Unlike state invariants, which re...
Klaus Dräger, Bernd Finkbeiner
ENTCS
2007
109views more  ENTCS 2007»
15 years 7 months ago
Constructive Membership Predicates as Index Types
In the constructive setting, membership predicates over recursive types are inhabited by terms indexing the elements that satisfy the criteria for membership. In this paper, we mo...
James Caldwell, Josef Pohl
JAPLL
2010
179views more  JAPLL 2010»
15 years 5 months ago
Tractable query answering and rewriting under description logic constraints
Answering queries over an incomplete database w.r.t. a set of constraints is an important computational task with applications in fields as diverse as information integration and ...
Héctor Pérez-Urbina, Boris Motik, Ia...
EVOW
2009
Springer
15 years 4 months ago
The Dynamic Knapsack Problem Revisited: A New Benchmark Problem for Dynamic Combinatorial Optimisation
Abstract. In this paper we propose a new benchmark problem for dynamic combinatorial optimisation. Unlike most previous benchmarks, we focus primarily on the underlying dynamics of...
Philipp Rohlfshagen, Xin Yao